Pump



Y A. A. ORR

PUMP

Filed April 1, 194:5

2 Sheets-Sheet l Inventor flsa/ A. Orr

A. A. ORR

Aug. 15, 1944,

PUMP

Filed April 1, 1945 2 Sheets-Sheet 2 Inventor flsa x4 v02').

Patented Aug. 15, 1944 PUMP 'Asa Ar'Orr, Morgantown, W. Va., assignor of 1 twenty per cent to Harold Osbourne, Van

Voorhis', and twenty per cent to Walter Kaufield, ,Star City, W. Va. 7

Application April 1, 1943,:Serial No. 481,468 I 1 Claim. (01. 103-93) My invention relates to improvements in pumps, the principal object in view being to provide a light weight, quick acting pump for mines more particularly, although not necessarily, and which involves a minimum number of parts of simple construction, is particularly designed for maximum volume discharge in proportion to size, and with a low power drive, obviates the use of valves, requires a minimum of servicing, and is easy to handle and install.

Other and subordinate objects are also comprehended by my invention, all of which, together with the precise nature of my improvements, will be readily understood when the succeeding description and claim are read with reference to the drawings accompanying and forming part of this specification.

In said drawings:

Figure 1 is a view in plan of my improved pump, in its preferred embodiment,

Figure 2 is a view in longitudinal section taken on the line 22 of Figure 1,

Figure 3 is a view in transverse section taken on the line 3-3 of Figure l and drawn to an enlarged scale,

Figure 4 is a view in side elevation of the baffle and deflecting plate,

Figure 5 is a fragmentary view in transverse section of a modification of the invention, and

Figure 6 is a view in longitudinal section taken on the line 66 of Figure 5.

Referring to the drawings by numerals, my improved pump, in the illustrated preferred embodiment thereof, comprises an elongated casing including a cylindrical body I, in the form of a pipe section, and a pair of outwardly tapering cap sections 2, 3 threaded onto the opposite ends of the body I, as indicated at 4, each section 2, 3 including a lateral tubular extension 5, 6 on one and the same side of the pump opening into the cap section, as best shown in Figure 2. The extension 5 is on the inlet side of the pump, and

the extension 6 on the discharge side, and said extensions are designed to be coupled to intake and discharge lines in any suitable manner. The section 2 forms a suction chamber and the section 3 a compression chamber, as will be apparent.

An impeller shaft extends axially through the described casing, as at I, and is provided within the body I with a helical impeller blade 8 of slightly smaller diameter than the internal diameter of said body I. One end of the shaft 1 is reduced, as at 9, and journaled in a bearing block l0 fitted in an axial nipple II extending from the section 2. A packing gland l2 including an end thrust washer I3 is circumposed on the reduced portion 9 of the shaft 1 between the bearing block 16 and a shoulder I4 formed by the juncture of the reduced portion 9 of said shaft with the larger portion. The other end of said shaft 1 is extended out of the casing through a nipple [5 extending axially from the section 3 and is provided with an end thrust bearing i6 suitably arranged in said nipple [5. A packing gland ll prevents leakage out of the nipple l5 and around said shaft 1. Oil or grease cups l8, l9 are suitably extended into the nipples H, 5 for lubricating the shaft bearings described.

A combined battle and deflector plate 29 is provided in the longitudinal vertical center of the body l to extend lengthwise thereof from end to end of the same. The combined baflie and deflector plate 20 is formed in the longitudinal center thereof with a channel 2| accommodating the impeller shaft 1 and preferably clearing the same. 'Iransversely extending, elongated, rectangular openings 22 are provided in the combined baffle and deflector plate 20 and spaced longitudinally along the same to permit alternate convolutions of the blade 8 to extend therethrough and revolve therein and which provide partitions 23 between said convolutions. Diametrically opposite, longitudinally extending grooves 24 are provided in the body I in which the edges of the combined baffle and deflector plate 20 are fitted to secure said plate in said body I.

The body I and cap sections 2, 3 may be formed of any strong, light weight metal, or plastic, also the combined baflle and deflector plate 21].

In the modification of the invention illustrated in Figures 5 and 6, the spiral blade 25 is provided with a spiral edge strip-like lip 26 riveted thereto, as at 21, and designed to wipe against the inner circumference of the body 28 of the pump casing.

The operation of the described pump will, in part, be understood from the foregoing. Suifice it to explain that as the impeller shaft 1 and spiral blade 8 are revolved, by power applied to said shaft, counter-clockwise, as viewed in Figure 3, the material is sucked into the intake side of the pump, forced through the body I and out of the discharge side, the combined baffle and deflector plate 20 functioning to prevent the material, such as liquid, from swirling around in the body I, under the action of the spiral blade 8, whereby the passage of the material through the body I is accelerated and the capacity output of the pump increased as compared with the volume output which would be obtained if the material were permitted to be carried around the inside of the body I. Obviously, the rate of output will depend on the pitch of the spiral blade 8 and the speed of rotation thereof, and it is to be understood that the pitch of said blade may be varied in accordance with the work and character of material which the pump is designed to handle. Also, the spacing of the openings 22 may be varied in accordance with I out departing from the inventive concept, and 20 right is herein reserved to such modifications as fall within the scope of the appended claim.

What I claim is:

In a pump of the class described, a casing including a cylindrical body, cap sections closing the ends of said body and forming suction and compression chambers, respectively, a drive shaft extending axially through said body and having the opposite ends thereof journaled in said sections, a spiral blade on said shaft, and a combined baflie and deflector plate in said body extending diametrically therein from end to end thereof and provided with rectangular openings through which some of the spirals of the blade extend, said plate having a longitudinal groove therein accommodating said shaft and having its edges mortised into said body.

ASA A. ORR. 

